.shadow_wrap{
	 margin-bottom: 10px;
}
.floating {
	height: 150px;
	line-height: 150px;
	text-align: center;
	cursor: pointer;
	position: relative;
	transform: translateY(0);
	transition: transform 1s;
}
.floating:after {
    content: "";
    display: block;
    position: absolute;
    bottom: -30px;
    left: 50%;
    height: 8px;
    width: 100%;
    box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.4);
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.2);
    transform: translate(-50%, 0);
    transition: transform 1s;
}
/*鼠标移上去的效果*/
.floating:hover {
    transform: translateY(-40px);
    transition: transform 1s;
}
.floating:hover:after {
    transform: translate(-50%, 40px) scale(0.75);
    transition: transform 1s;
}